Without a doubt, the strangest serial crime I have ever heard of:
The Ballad of the Piggyback Bandit
Retracing the steps of Sherwin Shayegan, who was banned in five states for jumping on high school athletes' backs.
<snip>
It was October 28, 2011. A hotel clerk called in the tip. A guest named Sherwin Shayegan, the clerk said, seemed oddly familiar. Sherwin asked for the hotel's courtesy van to drive him to a boys' soccer tournament. "Honestly, it's a Friday," Lawrence says. "We're like, 'What the hell, let's get out of the office and watch a little soccer.'"
Before leaving, they Googled Sherwin's name. It was like Ranalli's word "Boom!" The detectives found stories that made Morganna, the Kissing Bandit, look like an amateur. Sherwin had gone to cities and towns just like Helena. He sought out high school athletes. Then Sherwin did a super-creepy thing to them.
<snip>
When the final whistle blew, the detectives watched as Sherwin hurried onto the field and approached a C.M. Russell player. He said a few words to the player and gave him a fist bump. Then Sherwin did his super-creepy thing: As the player walked away, Sherwin heaved his girth onto the player's back. He wanted a piggyback ride.
<snip>
http://www.grantland.com/story/_/id/8154931/on-trail-piggyback-bandit
It's kind of sad. He's autistic and has no home.
Be that as it may, I wouldn't want him jumping on me.